Morocco’s interior minister says five charred bodies were found in a bank set aflame by troublemakers on the sidelines of one of many nationwide protests pushing for more democracy in the kingdom.

Taeib Cherqaoui told reporters Monday that at least 128 people were injured – mostly security forces – in unrest linked to protests a day earlier that drew at least 37,000 demonstrators in dozens of towns and cities.

The minister said that “troublemakers” vandalized dozens of public buildings, stores and banks, including one in northeastern Al Hoceima where the five bodies were found. He said 120 people were arrested.

The demonstrations marked Morocco’s entree into a wave of protests across the Arab world after popular uprisings toppled longtime autocrats in Tunisia and Egypt.